Cobalt Celata

Taken all the way down to base materials, one Cobalt Celata is 3 crafting steps deep and needs 5 intermediates — Cobalt Plate ×2, Electrum Ingot ×1, Mythril Rings ×1 and 2 others — which resolve to 4 distinct raw materials totalling 19 units, plus 55 crystals.

That bill outweighs 7,589 of the 13,602 recipes tracked here and 733 of the 1,441 Armorer ones, and 337 recipes nest deeper.

Only 12 of those crystals go into the final step; the other 43 are burned by the intermediates, so the real crystal cost is 24 Fire Shard, 20 Ice Shard, 6 Earth Shard and 1 other kind.

The chain crosses three disciplines — Armorer to Lv 50, Blacksmith to Lv 42 and Goldsmith to Lv 42 — so no single class can finish it unaided.

All 4 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Electrum Ingot has the widest use: 234 recipes call for it, spanning seven of the eight crafting classes.